Wattpower Eyes BESS, C&I Segment To Diversify Products

Indian inverter manufacturer Wattpower Systems is set to expand into the commercial and industrial (C&I) solar market and begin manufacturing battery energy storage systems (BESS). The firm has planned to undertake the new projects within the next six to eight months, the top management of the firm told Saur Energy.

The Chennai-based firm, which started operations in 2002-03, has surpassed a manufacturing capacity of 15 gigawatts (GW) and has an additional 10 GW of projects in the pipeline, Sales Director Pavit Gandhi told Saur Energy.

“We are actively working on entering the C&I segment and also exploring opportunities in BESS. These plans are under development and expected to begin within the next few months,” Gandhi said.

Uniqueness of products

Wattpower’s string inverters are used in utility-scale ground-mounted solar projects across India. The company claims its technology stands out for its design flexibility, redundancy, high availability, and compliance with evolving grid requirements.

“Our uniqueness lies in smart features such as disconnectors, cooling fans and grid-adaptive functionality,” Gandhi said.

Despite widespread reliance on Chinese components in the Indian solar sector, Wattpower positions itself as a value-driven alternative, he said. “We do not compete on price. We focus on delivering value through superior system design and customized layouts that help optimize the levelized cost of energy (LCOE),” he said.

Extreme Weather Resilience 

The company has commissioned more than 5 GW of solar capacity in Khavda, Gujarat, one of India’s largest renewable energy zones, Gandhi said. The project also served as a testing ground for Wattpower’s inverters in extreme weather conditions.

“There was no adverse impact on performance. Our products are designed to last 20 to 25 years, even under harsh climatic stress,” he added.

Wattpower currently operates a 10 GW production line and is now eyeing the next phase of innovation—grid-forming inverters, which Gandhi described as a “coming frontier” for the industry.

“The key challenge is grid compliance, especially with evolving Central Electricity Authority (CEA) norms. Our goal is to develop inverters that not only support the grid but can help form and stabilize it,” he said.